NVIDIA H100 PCIe 80GB~66 tok/s (Q4)

openai/gpt-oss-120b speed on NVIDIA H100 PCIe 80GB

Quantization-specific throughput and VRAM requirements for openai/gpt-oss-120b running on NVIDIA H100 PCIe 80GB.

Speed Snapshot

Topline estimate from compatibility data

Modelopenai/gpt-oss-120b

GPUNVIDIA H100 PCIe 80GB

Q4 speed66 tok/s

Q4 VRAM required59GB

Data Source

Calculation and benchmark status

Speed values come from the compatibility dataset (`estimatedTokensPerSec`) and are sorted by quantization.

For full verdict logic and alternate GPUs, see the canonical compatibility page.

Quantization Speed Table

Quantization	VRAM needed	VRAM available	Speed	Verdict
Q4	59GB	80GB	66 tok/s	✅ Fits
Q8	117GB	80GB	41 tok/s	❌ Not recommended
FP16	235GB	80GB	25 tok/s	❌ Not recommended